Trapezoids and Isosceles Trapezoids

Front

What is a trapezoid?

Back

A trapezoid is a four-sided figure (quadrilateral) with at least one pair of parallel sides.

Front

What is an isosceles trapezoid?

Back

An isosceles trapezoid is a trapezoid in which the non-parallel sides (legs) are congruent.

Front

What are the properties of the legs of an isosceles trapezoid?

Back

The legs of an isosceles trapezoid are congruent.

Front

What can be said about the base angles of an isosceles trapezoid?

Back

The base angles of an isosceles trapezoid are congruent.

Front

What is the relationship between the diagonals of an isosceles trapezoid?

Back

The diagonals of an isosceles trapezoid are congruent.

Front

If the measure of one base angle of an isosceles trapezoid is 79°, what is the measure of the other base angle?

Back

The other base angle is also 79°.

Front

What is the sum of the interior angles of a trapezoid?

Back

The sum of the interior angles of a trapezoid is 360°.

Front

In an isosceles trapezoid, if one leg measures 10 cm, what does the other leg measure?

Back

The other leg also measures 10 cm.

Front

Which statement is false about an isosceles trapezoid?

Back

All four angles are congruent.

Front

If the bases of an isosceles trapezoid are 12 cm and 8 cm, what is the average length of the bases?

Back

The average length of the bases is 10 cm.